Add copywrite info

Add debian packageing files
Allow ignoreing of WM_CLIENT_MACHINE

xinstance.h

@@ -1,3 +1,22 @@
+/**
+ * Sigstoped
+ * Copyright (C) 2020 Carl Klemm
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 3 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
 #pragma once
 #include <X11/Xlib.h>
 #include <string>
@@ -17,6 +36,8 @@ public:
     
     static constexpr unsigned long MAX_BYTES = 1048576;
     
+    inline static bool ignoreClientMachine = false;
+    
     Atoms atoms;
     int screen = 0;
     Display *display = nullptr;